cheers mate!
the FPS thing has been bugging me too. i get down to 36fps crossing the creek. i think one of the major tasks i have to sit down and just suffer through, is setting LOD individually to all the small detailed stuff. there are 13,000 objects around the track, all basically set LOD in at 600m. that could be screwing things up a bit!
any other ideas for improving fps short of just removing objects to reduce poly count?
As for the course and certain cars making corners etc, what i hope to do is release say 3 different configurations of the track. one of which will be a circuit around the 'current road' which bypasses the hairpin, and doesnt detour via the old Govt House. that is a lot faster circuit. you CAN drive that way if you like right now, just drive straight through the orange cones and keep your foot down! those sections of road are basically already complete, though they could do with some fine tuning, plus adding scenery to give you brake markers etc
the other things you mention are on, or are now on, my ever increasing to-do list
but yeah, glad you enjoy it, its an atmospheric, immersive track!
cheers
ed